Windows10 not recognizing 2 Toshiba ext HD at same time Solved

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  1. jumanji's Avatar
    Posts : 797
    Windows 7 Ultimate 32bit
       03 Mar 2018 #11

    beovertherenow : "....... (this solution found here look for final post by MathewsRL http://www.tomshardware.com/answers/...ve-online.html)"

    Just saw this thread and that brought my old memories, my 08 Oct 2014 post#3 here Unable to change external drive letter Solved - Windows 7 Help Forums

    jumanji wrote :"This is a very common problem encountered by those who buy two or more identical drives of the same manufacturer at the same time..

    Windows identifies a drive by a Unique ID in sector 0. When two drives have the same Unique ID as it may happen in these cases, Windows will identify only one drive and the other drive will be "offline" due to "Signature collision"

    And you bring the other drive "online" as you did, Windows assigns a different Unique ID to that drive and thereafter that drive becomes accessible to take a different drive letter."


    This solution of toggling offline to online to overcome the signature collision originally came from Win7Survivor in his 2010 post Windows 7 does not detect multiple External Hard Drives - Microsoft Community and picked up by many. Me too was one heck of a picker .
    Last edited by jumanji; 03 Mar 2018 at 22:35.
      My ComputerSystem Spec


 
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